This looks like one of your best walls to me. Just cause that scan looks kawaii, and the bg looks really interesting.
The coloring and effects are pretty cool. ;)
Like eternallegend said, the grass seems misplaced. I'm thinking it's because the bg doesn't look realistic compared to
how the grass looks. You should have put like a small field of grass or something. But it's no real big deal.
The wallie's great. Keep it up. ;)